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3 years ago

In how many ways can president, vice-president, and secretary be chosen from 9 students?

Mathematics

2 answers:

Dominik [7]3 years ago

4 0

Answer:

The answer is 27

Step-by-step explanation:

This is because each person can have up to three roles, and there are 9 students. So you can form an array, or a table to show your values. so if you have 9 rows and 3 coulombs and you can have 27 crosses in the array.

gogolik [260]3 years ago

4 0

Answer:

Step-by-step explanation:in how many ways can a president, vice president, and a secretary be chosen?... is it 12X11X10. Permutation of n things taken r at a time: nPr=n!/(n-r)! 12P3=12*11*10*9!/9!= 12*11*10=1320 ways.

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(3x - 2) + (5x + 7)

deff fn [24]

Answer:

8x+5

Step-by-step explanation:

To solve this, you need to combine the like terms. The line terms are 3x +5x and -2+7. 3x+5x=8x and 7-2 (same thing as -2+7) is positive 5 so its 8x+5

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2 years ago

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Write a few sentences about different was to show subtraction for a problem like 32-15

iogann1982 [59]

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3 years ago

Solve the equation: |2x + 5| = 11.

MrRa [10]

Answer:

x=3 or x= -8

Step-by-step explanation:

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3 years ago

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The function g(x) is the transformation of the function f(x). Decide how f(x) was transformed to make g(x).

yan [13]

Answer:

Correct option: A -> Horizontal or vertical reflection

Step-by-step explanation:

We can observe that the value of x in f(x) gives a value that is the same value we have in g(x) with the value -x.

That is, x = 1 in f(x) gives the same result as x = -1 in g(x)

So this means that these functions are a reflex of each other in relation to the y-axis, as the x values of one have the same result as (-x) values for the other one.

So the correct option is A: Horizontal or vertical reflection

(It is a horizontal reflection)

6 0

2 years ago

Pleasee help me! Find the measure of <a + <b + <c + <d + <e + <f. Explain

larisa86 [58]

Step-by-step explanation:

By sum of angles on a straight line = 180°,

we have Angle A + Angle B = 180°,

Angle C + Angle D = 180°, and

Angle E + Angle F = 180°.

Hence Angles A + B + C + D + E + F = (180°) + (180°) + (180°) = 540°.

8 0

2 years ago